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3.5 Newton's Laws of Motion

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Question 7
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A particle P P\,P of mass 0.8kg moves under the action of a force F F\,F N. The acceleration of P P\,P is (−3i+5j)(-3\mathbf{i} + 5\mathbf{j})(−3i+5j).

a.

Find the angle between the acceleration and the vector i\mathbf{i}i.

[2]
b.

Find the magnitude of FFF.

[3]

3.5 Newton's Laws of Motion Questions

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